He has conquered the pop charts and now Will.I.Am is taking over the world's iconic buildings with his music.
The Black Eyed Peas star was in Sydney on Thursday to show off his latest toy, an interactive music and light installation beamed onto the facade of the Museum Of Contemporary Art in Circular Quay.
Hundreds watched - and a few had a go - as Will.I.Am "played" the building by guiding giant colourful icons projected onto the museum's 15-metre wall.
Will.I.Am said the human side to it, using outstretched hands to alter the course of his pre-produced soundtrack, is simple compared to coming up with hits like I Gotta Feeling.
"The installation is easy to play and was designed so that anyone can make music just by using their hands," he told AAP.
"I got thinking what's the new instrument? We've got a guitar and a piano, (so) why not transform a building into something we can all play?"
The installation was created especially for Vivid Festival using the projections of Sydney artist Justene Williams.
It encompasses imaging technology that tracks the human skeleton and calculates how far a user's hands are from their body.
By virtually pushing and pulling icons projected onto the museum wall the user is able to change the flow of the music being played over a live PA.
Pioneered by Intel, the work is part of 12 projects Will.I.Am is curating around the world.
He said he next wants to play the digital interface on the Empire State Building.
A judge on Britain's version of The Voice, the musician admitted to suffering jetlag from arriving just hours after performing at the Queen's Jubilee celebrations in London earlier this week.
"I was hanging out with Paul McCartney and the Queen but there was no way I was going to miss this," he said.